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Synthesis and Characterization of Biotene: A New 2DÂ Natural Oxide From Biotite

Mahapatra, PL and Tromer, R and Pandey, P and Costin, G and Lahiri, B and Chattopadhyay, K and Ajayan, PM and Roy, AK and Galvao, DS and Kumbhakar, P and Tiwary, CS (2022) Synthesis and Characterization of Biotene: A New 2DÂ Natural Oxide From Biotite. In: Small .

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Official URL: https://doi.org/10.1002/smll.202201667


In this work, the synthesis and characterization of ultrathin metal oxide, called biotene, using liquid-phase exfoliation from naturally abundant biotite are demonstrated. The atomically thin biotene is used for energy harvesting using its flexoelectric response under multiple bending. The effective flexoelectric response increases due to the presence of surface charges, and the voltage increases up to ≈8 V, with a high mechano-sensitivity of 0.79 V N−1 for normal force. This flexoelectric response is further validated by density functional theory (DFT) simulations. The atomically thin biotene shows an increased response in the magnetic field and thermal heating. The synthesis of two-dimensional (2D) metal-oxide biotene suggests a wealth of future 2D-oxide material for energy generation and energy harvesting applications.

Item Type: Journal Article
Publication: Small
Publisher: John Wiley and Sons Inc
Additional Information: The copyright for this article belongs to the John Wiley and Sons Inc.
Keywords: Energy harvesting; Metals; Mica, Biotite; Density functional theory; Density-functional-theory; Flexoelectric; Flexoelectric material; Liquid phasis; Natural oxides; Synthesis and characterizations; Two-dimensional materials; Ultra-thin, Density functional theory
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 22 Jun 2022 05:22
Last Modified: 22 Jun 2022 05:22
URI: https://eprints.iisc.ac.in/id/eprint/73949

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